EP 2647328 A1 20131009 - ANTENNA APPARATUS
Title (en)
ANTENNA APPARATUS
Title (de)
ANTENNENVORRICHTUNG
Title (fr)
DISPOSITIF D'ANTENNE
Publication
Application
Priority
- JP 2010265757 A 20101129
- JP 2011074354 W 20111021
Abstract (en)
An antenna apparatus that can precisely receive a radio signal transmitted from a capsule endoscope introduced in an inside of a subject is provided. The antenna apparatus includes: a first receiving antenna 41 and a second receiving antenna 42 respectively disposed at positions which are in an equal distance from a reference point O 1 and face each other with the reference point O 1 therebetween; a third receiving antenna 43 and a fourth receiving antenna 44 disposed at positions on a plane, a gravity center of the third receiving antenna 43 and a gravity center of the fourth receiving antenna 44 being in an equal distance from the reference point O 1 on the plane, a straight line connecting the gravity centers of the third receiving antenna 43 and the fourth receiving antenna 44 being at an angle of 90 degrees with respect to a straight line connecting gravity centers of the first receiving antenna 41 and the second receiving antenna 42; and a fifth receiving antenna 45, a sixth receiving antenna 46, a seventh receiving antenna 47, and an eighth receiving antenna 48 disposed respectively at positions on the plane, gravity centers of the fifth receiving antenna 45 to the eighth receiving antenna 48 being on straight lines different from each other, which are rotated by an angle of 45 degrees from the straight line connecting the gravity centers of the first receiving antenna 41 and the second receiving antenna 42 and the straight line connecting the gravity centers of the third receiving antenna 43 and the fourth receiving antenna 44, respectively.
IPC 8 full level
A61B 1/00 (2006.01); H01Q 9/28 (2006.01); H01Q 21/24 (2006.01)
CPC (source: EP US)
A61B 1/00016 (2013.01 - EP US); A61B 5/07 (2013.01 - EP US); H01Q 21/24 (2013.01 - EP US); A61B 1/041 (2013.01 - EP US); H01Q 1/273 (2013.01 - EP US); H01Q 1/38 (2013.01 - EP US); H01Q 9/285 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2013027267 A1 20130131; US 8446332 B2 20130521; CN 102905607 A 20130130; CN 102905607 B 20150422; EP 2647328 A1 20131009; EP 2647328 A4 20140611; EP 2647328 B1 20180808; JP 5101756 B2 20121219; JP WO2012073615 A1 20140519; WO 2012073615 A1 20120607
DOCDB simple family (application)
US 201213540761 A 20120703; CN 201180026036 A 20111021; EP 11845678 A 20111021; JP 2011074354 W 20111021; JP 2012530043 A 20111021